CN112173955B

CN112173955B - Anti-drop hook mechanism for lifting tower crane

Info

Publication number: CN112173955B
Application number: CN202010863455.1A
Authority: CN
Inventors: 项钰; 鲍佳; 陈亚杰
Original assignee: Huadong Building Co Ltd of China Construction Fifth Engineering Bureau Co Ltd
Current assignee: Huadong Building Co Ltd of China Construction Fifth Engineering Bureau Co Ltd
Priority date: 2020-08-25
Filing date: 2020-08-25
Publication date: 2023-08-11
Anticipated expiration: 2040-08-25
Also published as: CN112173955A

Abstract

The invention belongs to the technical field of tower crane equipment, in particular to a lifting anti-drop hook mechanism of a tower crane, which aims at the problems that materials are easy to drop due to shaking generated in the transportation process in the prior art, the materials are damaged, resources are wasted, the cost is increased, and injury to people is easy to occur.

Description

Anti-drop hook mechanism for lifting tower crane

Technical Field

The invention relates to the technical field of tower crane equipment, in particular to a lifting anti-unhooking mechanism of a tower crane.

Background

The tower crane is a lifting device which is most commonly used on a construction site, is also called a tower crane, is used for lifting raw materials for construction such as steel bars, wood edges, concrete, steel pipes and the like for construction by lengthening one section (short for standard section), so as to lighten manual labor force and reduce construction cost, and is an indispensable device on the site, and the hook is an important component of the tower crane acting on suspended materials.

The traditional tower crane hook is simple in structure, has no protection mechanism except a hanging material, is easy to fall off due to shaking generated in the transportation process of the material, not only causes material damage and resource waste and cost increase, but also is easy to injure people by smashing, and has low safety coefficient, so that the lifting anti-falling hook mechanism of the tower crane is provided for solving the problems.

Disclosure of Invention

The invention aims to solve the defects that materials are easy to fall off due to shaking generated in the transportation process, materials are damaged, resources are wasted, cost is increased, injury to people is easy to occur, and the safety coefficient is low in the prior art, and provides a lifting anti-falling hook mechanism of a tower crane.

In order to achieve the above purpose, the present invention adopts the following technical scheme:

the utility model provides a tower crane lifts by crane anticreep and colludes mechanism, includes the couple, the bottom of couple runs through sliding connection has the movable rod, the top of movable rod extends to the top of couple and fixedly connected with arc movable block, and the bottom radian of arc movable block and the top radian looks adaptation of couple, the top of arc movable block is the plane and is equipped with the arc wall, the bottom inner wall of arc wall is equipped with string standing groove, top one side of arc movable block is equipped with the mounting groove, the inside rotation of mounting groove is connected with the pivot, the symmetry fixed cover is equipped with two gag lever posts in the pivot, the top opposite side symmetry of arc movable block is equipped with two spacing grooves, mounting groove and two spacing grooves are located the both sides of arc wall respectively and all are linked together with the inside of arc wall, and two gag lever posts cooperate with two spacing grooves respectively, one side symmetry fixedly connected with two fixed blocks that the couple kept away from each other, the same connecting structure is arranged on the two fixing blocks, an arc opening is arranged on one side of the fixing block far away from the hook, two clamping rods are symmetrically and fixedly connected through the inner wall of one side of the arc opening far away from each other, one ends of the two clamping rods close to each other are fixedly connected with arc clamping blocks, one sides of the two arc clamping blocks far away from each other are respectively attached to the inner walls of the two sides of the arc opening, two fixed sliding sleeves are symmetrically and fixedly connected with the bottom of one side of the fixing block far away from each other, sliding rods are fixedly connected in the two fixed sliding sleeves in a penetrating and sliding manner, two ends of the two sliding rods extend to the outer sides of the corresponding fixed sliding sleeves, one ends of the two clamping rods far away from each other extend to the outer sides of the fixing blocks and are respectively in transmission connection with one ends of the two sliding rods, one moving plate is fixedly connected with the other ends of the two sliding rods, and one side of the movable rod extends to the lower part of the hook and is rotationally connected with the same first connecting rod with one side of the movable plate far away from the fixed block, and the same hanging rope is movably placed in the hanging rope placing groove and the two arc-shaped openings.

Preferably, the bottom inner wall of the mounting groove is penetrated with a transmission rod, the bottom end of the transmission rod extends to the lower part of the arc movable block and is fixedly connected with one side of the top of the hook, a tooth groove is formed in one side top of the transmission rod, a half gear positioned between the two limiting rods is fixedly sleeved on one side of the rotating shaft, the half gear is meshed with the tooth groove, and when the arc movable block moves up and down and drives the half gear to move up and down, the rotating shaft can be driven to rotate through meshing movement with the tooth groove.

Preferably, one side that the transfer line was kept away from to the bottom of arc movable block is equipped with the spout, and sliding connection has the bracing piece in the spout, and the bottom of bracing piece extends to the below of arc movable block and with the top one side fixed connection of couple, can play the effect of steady rest to the arc movable block through the bracing piece.

Preferably, the fixed block is mutually far away from one side bottom symmetry run through sliding connection has two telescopic links, and the one end that two telescopic links kept away from each other all extends to the outside of fixed block, and two telescopic links are located two clamp bars respectively under, and one side of two telescopic links is connected with same second connecting rod with one side rotation of corresponding slide bar respectively, when the slide bar removes, can drive the telescopic link through the second connecting rod and carry out telescopic movement.

Preferably, the fixed block is mutually far away from one side symmetry fixedly connected with two dead levers, and two dead levers are located respectively and correspond clamping lever and telescopic link's centre, and one side of two dead levers is all rotated and is connected with the third connecting rod, and the both ends of two third connecting rods are rotated with one side that corresponds clamping lever and telescopic link respectively and are connected, when the telescopic link removes, can drive clamping lever through the third connecting rod and do reverse movement.

Preferably, two one sides of the sliding rods are respectively provided with a reset spring in a penetrating mode, two ends of the two reset springs are respectively contacted with one sides, close to the moving plate, of the corresponding fixed sliding sleeve, and the effect of resetting the moving plate can be achieved through the reset springs, and meanwhile the sliding rods are reset.

Preferably, two one side of the limiting rod, which is close to the arc-shaped groove, is fixedly connected with the same anti-slip rubber block, and when the limiting rod has a closed limiting effect on the hanging rope, the limiting effect can be further achieved by the anti-slip rubber block on the hanging rope.

Preferably, the inner wall of the bottom of the hanging rope placing groove is provided with a plurality of anti-slip protrusions, and the anti-slip effect can be achieved on the hanging rope through the anti-slip protrusions, so that the stability of clamping is improved.

According to the anti-drop hook mechanism for lifting the tower crane, the hanging rope can drive the arc-shaped movable block to move downwards under the action of self gravity after the material is lifted, so that the rotating shaft can be driven to rotate clockwise, the limiting rod is driven to rotate clockwise, when the arc-shaped movable block moves to be attached to the hook, the limiting rod just rotates to the limit groove, the effect of automatic closing and limiting of the hanging rope is achieved, the effect of stable clamping of the hanging rope can be achieved through the cooperation of the anti-slip rubber block and the anti-slip protrusions, and the hanging rope is prevented from sliding;

when the arc movable block moves downwards, the movable rod can be driven to move downwards, the movable plate can be driven to move close to the fixed block through the first connecting rod, meanwhile, the sliding rod is driven to move, meanwhile, the telescopic rod can be driven to move outwards through the second connecting rod, and then the clamping rod can move inwards through the third connecting rod, so that the arc clamping block is driven to move and the clamping effect is realized on the hanging rope, the effect of stable clamping is further realized on the hanging rope, the whole fixing process is not required to manually clamp and fix and loosen the hanging rope by staff, the automatic clamping and limiting effect on the hanging rope can be realized only through the self gravity of the material, the anti-drop effect is good, and the safety and the practicability are greatly improved.

According to the invention, the arc movable block is driven to move downwards by the gravity born by the hanging rope, so that the limiting rod can be driven to rotate and the effect of closing and limiting the hanging rope is achieved, the stability of clamping the hanging rope can be improved by matching the anti-slip rubber block with the anti-slip protrusions, the sliding of the hanging rope is prevented, meanwhile, the arc clamping block can be driven to clamp the hanging rope by moving downwards by the movable rod, the stability of the hanging rope is further improved, the anti-drop effect is effectively achieved, the structure is simple, the hanging rope is not required to be bound or released manually, the automatic clamping and loosening of the hanging rope can be achieved only by the change of gravity, the anti-drop effect is good, the safety and the practicability are greatly improved, and the popularization and the use are facilitated.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a lifting anti-unhooking mechanism of a tower crane;

fig. 2 is a cross-sectional view of an integral connection structure of an arc movable block of a lifting anti-unhooking mechanism of a tower crane;

fig. 3 is a top view of the overall structure of a lifting anti-drop hook mechanism 1 of a tower crane;

fig. 4 is a schematic diagram of a lifting hook-off prevention mechanism of a tower crane according to the present invention, in which the hook is removed from fig. 3;

fig. 5 is a side view of a partial structure of a lifting anti-drop hook mechanism 1 of a tower crane;

fig. 6 is a schematic diagram of the overall structure of a rope clip of a tower crane lifting anti-unhooking mechanism according to the present invention;

fig. 7 is a top view of the whole structure of fig. 6 of a lifting anti-unhooking mechanism of a tower crane according to the present invention;

in the figure: 1. a hook; 2. a movable rod; 3. an arc movable block; 4. an arc-shaped groove; 5. a hanging rope placing groove; 6. a mounting groove; 7. a limit groove; 8. a rotating shaft; 9. a limit rod; 11. a transmission rod; 12. tooth slots; 13. a half gear; 14. a chute; 15. a support rod; 16. a fixed block; 17. an arc opening; 18. a clamping rod; 19. arc clamping blocks; 20. fixing the sliding sleeve; 21. a slide bar; 22. a moving plate; 23. a first link; 24. a telescopic rod; 25. a second link; 26. a fixed rod; 27. a third link; 28. a return spring; 29. an anti-skid rubber block; 30. a slip preventing protrusion; 31. and (5) hanging ropes.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.

Example 1

Referring to figures 1-7, a tower crane lifting anti-drop hook mechanism comprises a hook 1, wherein the bottom of the hook 1 is connected with a movable rod 2 in a penetrating and sliding manner, the top end of the movable rod 2 extends to the upper part of the hook 1 and is fixedly connected with an arc movable block 3, the bottom radian of the arc movable block 3 is matched with the top radian of the hook 1, the top of the arc movable block 3 is a plane and is provided with an arc groove 4, the bottom inner wall of the arc groove 4 is provided with a hanging rope placing groove 5, one side of the top of the arc movable block 3 is provided with a mounting groove 6, the inside of the mounting groove 6 is rotationally connected with a rotating shaft 8, two limiting rods 9 are symmetrically and fixedly sleeved on the rotating shaft 8, the other side of the top of the arc movable block 3 is symmetrically provided with two limiting grooves 7, the mounting groove 6 and the two limiting grooves 7 are respectively positioned on two sides of the arc groove 4 and are respectively communicated with the inside of the arc groove 4, the two limiting rods 9 are respectively matched with the two limiting grooves 7, two fixing blocks 16 are symmetrically and fixedly connected to one side, far away from each other, of the hook 1, the two fixing blocks 16 are all provided with the same connecting structure, one side, far away from the hook 1, of the fixing blocks 16 is provided with an arc-shaped opening 17, inner walls of one side, far away from each other, of the arc-shaped opening 17 are symmetrically and slidingly connected with two clamping rods 18 in a penetrating and sliding manner, one ends, close to each other, of the two clamping rods 18 are fixedly connected with arc-shaped clamping blocks 19, one sides, far away from each other, of the two arc-shaped clamping blocks 19 are respectively attached to inner walls of two sides of the arc-shaped opening 17, two fixing sliding sleeves 20 are symmetrically and fixedly connected to the bottom of one side, far away from each other, of the fixing blocks 16, sliding rods 21 are respectively penetrated and slidingly connected with two sliding rods 21 in the two fixing sliding sleeves 20, two ends of the two sliding rods 21 respectively extend to the outer sides of the fixing blocks 16, one ends, far away from each other, of the two clamping rods 18 respectively extend to one ends of the two sliding rods 21 in a driving manner, the other ends of the two sliding rods 21 are fixedly connected with the same movable plate 22, one side of the movable rod 2 extends to the lower side of the hook 1, one side of the movable rod 22, which is far away from the fixed block 16, is rotatably connected with the same first connecting rod 23, and the same hanging rope 31 is movably arranged in the hanging rope placing groove 5 and the two arc-shaped openings 17.

Example two

Further improvement on the basis of the first embodiment: the bottom inner wall of the mounting groove 6 is penetrated with a transmission rod 11, the bottom end of the transmission rod 11 extends to the lower part of the arc movable block 3 and is fixedly connected with one side of the top of the hook 1, the top of one side of the transmission rod 11 is provided with a tooth groove 12, one side of the rotating shaft 8 is fixedly sleeved with a half gear 13 positioned between the two limiting rods 9, the half gear 13 is meshed with the tooth groove 12, when the arc movable block 3 moves up and down and drives the half gear 13 to move up and down, the rotating shaft 8 can be driven to rotate by the meshing movement with the tooth groove 12, one side of the bottom of the arc movable block 3 far away from the transmission rod 11 is provided with a sliding groove 14, the sliding groove 14 is internally and slidably connected with a supporting rod 15, the bottom end of the supporting rod 15 extends to the lower part of the arc movable block 3 and is fixedly connected with one side of the top of the hook 1, the bottom of one side of the fixing block 16 far away from each other is symmetrically penetrated and slidingly connected with two telescopic rods 24 through the supporting rod 15, one ends of the two telescopic rods 24, which are far away from each other, extend to the outer sides of the fixed blocks 16, the two telescopic rods 24 are respectively located under the two clamping rods 18, one sides of the two telescopic rods 24 are respectively and rotatably connected with the same second connecting rod 25 corresponding to one side of the sliding rod 21, when the sliding rod 21 moves, the telescopic rods 24 can be driven to perform telescopic movement through the second connecting rod 25, two fixed rods 26 are symmetrically and fixedly connected to one side of the fixed blocks 16, which is far away from each other, the two fixed rods 26 are respectively located in the middle of the corresponding clamping rods 18 and the telescopic rods 24, one sides of the two fixed rods 26 are respectively and rotatably connected with a third connecting rod 27, two ends of the two third connecting rods 27 are respectively and rotatably connected with one side of the corresponding clamping rods 18 and the telescopic rods 24, when the telescopic rods 24 move, the clamping rods 18 can be driven to perform reverse movement through the third connecting rods 27, one side of two slide bars 21 is all run through the cover and is equipped with reset spring 28, the both ends of two reset springs 28 all contact with the one side that corresponds fixed sliding sleeve 20 and movable plate 22 each other, can play the effect that resets to movable plate 22 through reset spring 28, reset slide bar 21 simultaneously, one side fixedly connected with same anti-skidding rubber block 29 that two gag lever posts 9 are close to arc wall 4, when gag lever post 9 plays the effect that closes spacing to hanging rope 31, can further play the effect that extrudees spacing to hanging rope 31 through anti-skidding rubber block 29, the bottom inner wall of hanging rope standing groove 5 is equipped with a plurality of non-slip protrusions 30, can play skid-proof effect to hanging rope through non-slip protrusions 30, and then improve the stability of joint.

Working principle: firstly, the hanging rope 31 is sleeved in the hanging rope placing groove 5, then two sides of the hanging rope 31 are respectively clamped into the arc-shaped opening 17, at the moment, the tower crane starts to work and drives the hanging hook 1 to lift upwards, the hanging rope 31 drives the arc-shaped movable block 3 to move downwards under the action of gravity after lifting materials, as the half gear 13 is meshed with the tooth groove 12, the rotating shaft 8 can be driven to rotate clockwise when the half gear 13 moves downwards, the limiting rod 9 is driven to rotate clockwise, when the arc-shaped movable block 3 moves to be attached to the hanging hook 1, the limiting rod 9 just rotates 90 degrees to the limiting groove 7 at the moment, thereby realizing the effect of automatic closing and limiting of the hanging rope 31, playing the role of stable clamping the hanging rope 31 through the cooperation of the anti-slip rubber block 29 and the anti-slip protrusion 30, and preventing the hanging rope 31 from sliding, playing the role of stable supporting and sliding the arc-shaped movable block 3 through the driving rod 11 and the supporting rod 15, when the arc movable block 3 moves downwards, the movable rod 2 can be driven to move downwards, the movable plate 22 can be driven to move close to the fixed block 16 through the first connecting rod 23, meanwhile, the sliding rod 21 is driven to move, the reset spring 28 is in a compressed state, meanwhile, the telescopic rod 24 can be driven to move outwards through the second connecting rod 25, and the clamping rod 18 can move inwards through the third connecting rod 27, as shown in figures 6 and 7, the arc clamping block 19 is driven to move and realize the clamping effect on the hanging rope 31, the effect of stable clamping is further realized on the hanging rope 31, the whole fixing process does not need to manually clamp and fix and loosen the hanging rope 31 by staff, the automatic clamping limiting effect on the hanging rope 31 during lifting can be realized only through the self gravity of the material, the anti-falling effect is good, the safety and the practicability are greatly improved, when the material is put down, the hanging rope 31 can realize the effect of automatically loosening the hanging rope 31 through the reset spring 28 under the condition of no gravity traction, and the use is convenient.

The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.

Claims

1. The utility model provides a tower crane lifts by crane anticreep and colludes mechanism, including couple (1), a serial communication port, the bottom of couple (1) runs through sliding connection has movable rod (2), the top of movable rod (2) extends to the top of couple (1) and fixedly connected with arc movable block (3), and the bottom radian of arc movable block (3) and the top radian looks adaptation of couple (1), the top of arc movable block (3) is the plane and is equipped with arc wall (4), the bottom inner wall of arc wall (4) is equipped with string standing groove (5), top one side of arc movable block (3) is equipped with mounting groove (6), the inside swivelling joint of mounting groove (6) has pivot (8), symmetrical fixed cover is equipped with two gag lever (9) on pivot (8), the top opposite side symmetry of arc movable block (3) is equipped with two spacing grooves (7), mounting groove (6) and two spacing groove (7) are located the both sides of arc wall (4) respectively and all are linked together with the inside of arc wall (4), and two spacing levers (9) cooperate with two spacing groove (7) respectively;

two fixed blocks (16) are symmetrically and fixedly connected to one side, away from each other, of the hook (1), the same connecting structure is arranged on each of the two fixed blocks (16), one side, away from the hook (1), of each fixed block (16) is provided with an arc opening (17), one side inner wall, away from each other, of each arc opening (17) is symmetrically and fixedly connected with two clamping rods (18) in a penetrating and sliding manner, one end, close to each other, of each two clamping rods (18) is fixedly connected with an arc clamping block (19), one side, away from each other, of each two arc clamping blocks (19) is respectively attached to inner walls of two sides of the arc opening (17), two fixed sliding sleeves (20) are symmetrically and fixedly connected to one side, away from each other, of each fixed block (16) is fixedly connected with two sliding sleeves (20), two sliding rods (21) are penetrated and connected in a sliding manner, two ends of each sliding sleeve (21) are respectively extended to the outer sides of the corresponding fixed sliding sleeves (20), one ends, away from each other, of the two clamping rods (18) are respectively connected with one end of each other in a driving manner, one end of each sliding rod (21) is fixedly connected with one moving plate (22), one side, which is extended to one side (2) of the moving plates (2) of each sliding sleeve (22) is respectively, which is extended to one side, away from each moving plate (23) of the hook (1), the same hanging rope (31) is movably arranged in the hanging rope placing groove (5) and the two arc-shaped openings (17).

2. The tower crane lifting anti-drop hook mechanism according to claim 1, wherein the bottom inner wall of the mounting groove (6) is penetrated with a transmission rod (11), the bottom end of the transmission rod (11) extends to the lower part of the arc-shaped movable block (3) and is fixedly connected with one side of the top of the hook (1), a tooth groove (12) is arranged at one side top of the transmission rod (11), a half gear (13) positioned between the two limiting rods (9) is fixedly sleeved on one side of the rotating shaft (8), and the half gear (13) is meshed with the tooth groove (12).

3. The tower crane lifting anti-unhooking mechanism according to claim 1, wherein a chute (14) is arranged at one side of the bottom of the arc-shaped movable block (3) far away from the transmission rod (11), a supporting rod (15) is connected in a sliding manner in the chute (14), and the bottom end of the supporting rod (15) extends to the lower side of the arc-shaped movable block (3) and is fixedly connected with one side of the top of the hook (1).

4. The tower crane lifting anti-drop hook mechanism according to claim 1, wherein two telescopic rods (24) are symmetrically connected through sliding at the bottoms of one sides of the fixed blocks (16) which are far away from each other, one ends of the two telescopic rods (24) which are far away from each other extend to the outer sides of the fixed blocks (16), the two telescopic rods (24) are respectively located under the two clamping rods (18), and one sides of the two telescopic rods (24) are respectively connected with one side of the corresponding sliding rod (21) in a rotating way to form the same second connecting rod (25).

5. The tower crane lifting anti-drop hook mechanism according to claim 1, wherein two fixing rods (26) are symmetrically and fixedly connected to one side, away from each other, of the fixing block (16), the two fixing rods (26) are respectively located in the middle of the corresponding clamping rod (18) and the telescopic rod (24), one sides of the two fixing rods (26) are respectively and rotatably connected with a third connecting rod (27), and two ends of the two third connecting rods (27) are respectively and rotatably connected with one sides of the corresponding clamping rod (18) and the telescopic rod (24).

6. The tower crane lifting anti-drop hook mechanism according to claim 1, wherein one side of each of the two sliding rods (21) is provided with a return spring (28) in a penetrating manner, and two ends of each of the two return springs (28) are respectively contacted with one side, close to each other, of the corresponding fixed sliding sleeve (20) and the corresponding movable plate (22).

7. The tower crane lifting anti-drop hook mechanism according to claim 1, wherein one side of the two limiting rods (9) close to the arc-shaped groove (4) is fixedly connected with the same anti-slip rubber block (29).

8. The tower crane lifting anti-drop hook mechanism according to claim 1, wherein a plurality of anti-slip protrusions (30) are arranged on the inner wall of the bottom of the hanging rope placing groove (5).